NOTICKET: Fix this

src/main/java/de/hitec/nhplus/medication/AllMedicationController.java

@@ -2,6 +2,7 @@ package de.hitec.nhplus.medication;
 
 import java.io.IOException;
 import java.sql.SQLException;
+import java.util.List;
 import java.util.stream.Collectors;
 
 import de.hitec.nhplus.Main;
@@ -56,14 +57,20 @@ public class AllMedicationController {
         this.columnName.setCellValueFactory(new PropertyValueFactory<>("name"));
         this.columnManufacturer.setCellValueFactory(new PropertyValueFactory<>("manufacturer"));
         this.columnIngredient.setCellValueFactory(
-            cellData -> new SimpleStringProperty(
-                cellData
-                    .getValue()
-                    .getIngredients()
-                    .stream()
-                    .map(ingredient -> ingredient.getName())
-                    .collect(Collectors.joining("\n"))
-            ));
+            cellData -> {
+                Medication medication = cellData.getValue();
+                List<Ingredient> ingredients = medication.getIngredients();
+                if(ingredients.isEmpty()){
+                    return new SimpleStringProperty("");
+                }
+
+                return new SimpleStringProperty(
+                        ingredients
+                        .stream()
+                        .map(ingredient -> ingredient.getName())
+                        .collect(Collectors.joining("\n"))
+                );
+            });
         this.columnPossibleSideEffects.setCellValueFactory(new PropertyValueFactory<>("possibleSideEffects"));
         this.columnAdministrationMethod.setCellValueFactory(new PropertyValueFactory<>("administrationMethod"));
         this.columnCurrentStock.setCellValueFactory(new PropertyValueFactory<>("currentStock"));

src/main/java/de/hitec/nhplus/medication/IngredientListCell.java

@@ -66,7 +66,7 @@ public class IngredientListCell extends ListCell<Ingredient> {
     }
 
     private void onTextFieldUpdate(ObservableValue<? extends String> observable, String oldValue, String newValue) {
-        commitEdit(new Ingredient(textField.getText()));
+        getItem().setName(textField.getText());
 
         textField.setMinWidth(getTextFieldRequiredWidth(textField));
 

src/main/java/de/hitec/nhplus/medication/MedicationModalController.java

@@ -1,19 +1,23 @@
 package de.hitec.nhplus.medication;
 
-import de.hitec.nhplus.treatment.AllTreatmentController;
+import javafx.beans.value.ChangeListener;
 import javafx.collections.FXCollections;
 import javafx.collections.ObservableList;
 import javafx.fxml.FXML;
+import javafx.scene.control.Button;
 import javafx.scene.control.ListView;
 import javafx.scene.control.TextArea;
 import javafx.scene.control.TextField;
 import javafx.stage.Stage;
 
 import java.util.ArrayList;
+import java.util.List;
+import java.util.function.Predicate;
+
+import static de.hitec.nhplus.utils.Validator.*;
 
 public class MedicationModalController {
 
-
     @FXML
     public ListView<Ingredient> listViewIngredients;
     @FXML
@@ -26,9 +30,10 @@ public class MedicationModalController {
     public TextField textFieldCurrentStock;
     @FXML
     public TextArea textAreaPossibleSideEffects;
+    @FXML
+    public Button buttonSave;
 
     private Stage stage;
-
     private Medication medication;
     private final ObservableList<Ingredient> ingredients = FXCollections.observableArrayList();
     private AllMedicationController controller;
@@ -37,19 +42,38 @@ public class MedicationModalController {
     public void initialize(Stage stage, AllMedicationController controller, Medication medication) {
         this.stage = stage;
         this.controller=controller;
-        this.medication = medication != null ? medication : new Medication(
-                "",
-                "",
-                new ArrayList<>(),
-                "",
-                "",
-                0
-        );
+
+        if( medication != null){
+            this.medication =  medication;
+        }else {
+            this.medication = new Medication(
+                    "",
+                    "",
+                    new ArrayList<>(),
+                    "",
+                    "",
+                    0
+            );
+            this.buttonSave.setDisable(true);
+        }
 
         listViewIngredients.setCellFactory(cellData -> new IngredientListCell());
         listViewIngredients.setItems(ingredients);
-
         showData();
+
+        ChangeListener<String> inputMedicationValidationListener = (observableValue, oldText, newText) -> {
+            boolean isValid = isValidMedicationName(textFieldName.getText())
+                    && isValidMedicationManufacturer(textFieldManufacturer.getText())
+                    && isValidMedicationAdministrationMethod(textFieldAdministrationMethod.getText())
+                    && isValidStock(textFieldCurrentStock.getText());
+
+            this.buttonSave.setDisable(!isValid);
+        };
+
+        this.textFieldName.textProperty().addListener(inputMedicationValidationListener);
+        this.textFieldManufacturer.textProperty().addListener(inputMedicationValidationListener);
+        this.textFieldAdministrationMethod.textProperty().addListener(inputMedicationValidationListener);
+        this.textFieldCurrentStock.textProperty().addListener(inputMedicationValidationListener);
     }
 
     private void showData(){
@@ -68,7 +92,14 @@ public class MedicationModalController {
         this.medication.setAdministrationMethod(textFieldAdministrationMethod.getText());
         this.medication.setCurrentStock(Integer.parseInt(textFieldCurrentStock.getText()));
         this.medication.setPossibleSideEffects(textAreaPossibleSideEffects.getText());
-        this.medication.setIngredients(ingredients);
+        this.medication.setIngredients(ingredients
+                .stream()
+                .map(Ingredient::getName)
+                .distinct()
+                .filter(Predicate.not(String::isEmpty))
+                .map(Ingredient::new)
+                .toList()
+        );
 
         controller.createMedication(medication);
         controller.readAllAndShowInTableView();
@@ -77,10 +108,11 @@ public class MedicationModalController {
 
     @FXML
     public void handleCancel() {
+        stage.close();
     }
 
     @FXML
     public void handleAddIngredient() {
-        ingredients.add(new Ingredient(null));
+        ingredients.add(new Ingredient(""));
     }
 }

src/main/java/de/hitec/nhplus/medication/database/MedicationDao.java

@@ -100,7 +100,7 @@ public class MedicationDao implements Dao<Medication> {
                         result.getInt(1),
                         result.getString(2),
                         result.getString(3),
-                        List.of(),
+                        new ArrayList<>(),
                         result.getString(4),
                         result.getString(5),
                         result.getInt(6)
@@ -108,11 +108,16 @@ public class MedicationDao implements Dao<Medication> {
                 medications.add(medication);
             }
             List<Ingredient> ingredients = ingredientMap.computeIfAbsent(currentMedicationId, k -> new ArrayList<>());
-            ingredients.add(new Ingredient(result.getString(7)));
+            String ingredientName = result.getString(7);
+            if(ingredientName == null){
+                continue;
+            }
+            ingredients.add(new Ingredient(ingredientName));
             lastMedicationId = currentMedicationId;
         }
         for (Medication medication : medications) {
-            if(!ingredientMap.containsKey(medication.getId())){
+            List<Ingredient> ingredients = ingredientMap.get(medication.getId());
+            if(ingredients.isEmpty()){
                 continue;
             }
             medication.setIngredients(ingredientMap.get(medication.getId()));

src/main/java/de/hitec/nhplus/utils/Validator.java

@@ -148,4 +148,28 @@ public class Validator {
     public static boolean isValidRoomNumber(String text) {
         return !text.isBlank();
     }
+
+    public static boolean isValidMedicationName(String text) {
+        return !text.isBlank();
+    }
+
+    public static boolean isValidMedicationManufacturer(String text) {
+        return !text.isBlank();
+    }
+
+    public static boolean isValidMedicationAdministrationMethod(String text) {
+        return !text.isBlank();
+    }
+
+    public static boolean isValidStock(String text) {
+        if (text.isBlank()) {
+            return false;
+        }
+        try {
+            int stock = Integer.parseInt(text);
+            return stock >= 0;
+        } catch (Exception exception) {
+            return false;
+        }
+    }
 }